Color

#3140ed

#3140ed
hex#3140ed
rgbrgb(49, 64, 237)
hslhsl(235, 84%, 56%)
oklchoklch(0.493 0.253 269.3)
Closest name: C64 Blue (#003aff)Relative luminance 0.1043

Colors that go with #3140ed

Charcoal, Crimson and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#eddd31

#319fed · #7f31ed

#ed3140 · #40ed31

Split-complementary

Open in tool →

#ed7f31 · #9fed31

#ed319f · #eddd31 · #31ed7f

Contrast

#3140ed as textRatioAAAA largeAAAFix
Aaon white
6.8:1passpassfail
  • AAA: use #2c3ced as the text (7.06:1)
Aaon black
3.09:1failpassfail
  • AA: use #5b67f1 as the text (4.66:1)
  • AAA: use #858ef4 as the text (7.17:1)
  • AA: or shift the background to #d4d4d4 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3140ed as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#3140ed reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3140ed
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3140ed and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3140ed-9e9cc4-df8d4e-241f2d-e9eef1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md